From 65f9e9d0aa46db54495ec9104699510b326fd3a4 Mon Sep 17 00:00:00 2001
From: Wojtek Figat <wojtek@figat.pl>
Date: Sun, 8 Aug 2021 20:58:36 +0200
Subject: [PATCH] Fix error

---
 Source/Editor/Modules/SceneEditingModule.cs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Source/Editor/Modules/SceneEditingModule.cs b/Source/Editor/Modules/SceneEditingModule.cs
index a3f23f775..6b2a7090d 100644
--- a/Source/Editor/Modules/SceneEditingModule.cs
+++ b/Source/Editor/Modules/SceneEditingModule.cs
@@ -216,7 +216,7 @@ namespace FlaxEditor.Modules
             }
         }
 
-        private void OnDirty(IEnumerable<SceneGraphNode> objects)
+        private void OnDirty(List<SceneGraphNode> objects)
         {
             var options = Editor.Options.Options;
             var isPlayMode = Editor.StateMachine.IsPlayMode;
@@ -236,7 +236,7 @@ namespace FlaxEditor.Modules
             {
                 foreach (var obj in objects)
                 {
-                    if (obj is ActorNode node && node.Actor.Scene && node.AffectsNavigationWithChildren)
+                    if (obj is ActorNode node && node.Actor && node.Actor.Scene && node.AffectsNavigationWithChildren)
                     {
                         var bounds = node.Actor.BoxWithChildren;
                         Navigation.BuildNavMesh(node.Actor.Scene, bounds, options.General.AutoRebuildNavMeshTimeoutMs);